Process for the manufacture of disinfectant substances and products produced thereby.



camphor (an isomer It is obvious that the possibility UNITED STATES PATENT OFFICE.

KURT OF BERLIN, GERMANY.

PROCESS FOR THE MANUFACTURE OF DISINFECTANT SUBSTANCES AND PRODUCTS PRODUCED THEREBY.

No Drawing.

Specification of Letters Patent.

Patented Mall. 19, 1912.

Application filed December 7, 1911. SeriaY-No. $64,377.

Thereby, of which the following is a speci:

fication.

This invention relates to processes for the manufacture of disinfectant fat-solvent sub stances and disinfectant soaps.

The process essentially consists in treating fenchone with solid or liquid soaps or their component materials.

By means of my invention I am able to manufacture solutions and emulsions of fenchone (an isomer of caniphor),which in consequence of their solvent action upon most widely diflerentsubstances are of great i nportance as a cleansing medium and more over are characterized by possessing, in spite of ,theFnon-poisonous nature, great disinfectant. qualities. It is of special importance in this connection that it is possible to obtain in this way disinfectant soaps which possess a fenchone content of more .Iran 10% of the soap content.

Fennel-oil has previously been employed in soap making as a perfuming ingredient, but on the one hand fennel-oil does not in every instance contain fenchone; and this employement ofvfennel-oil does not depend upon its fenchone content, as it is not fenchone but anethol that is responsible for the Also the aromatic property of fennel-oil. quantity of fennel-oil added, and in a correspondingly higher degree the quantity of fenchone contained int-his addition, is such a small proportion ofthesoap that only the poi-fuming effects would be caused by this addition. It has further been proposed to manufacture disinfectant soaps by using of fenchone). Fenchone possesses much greater solubility than camphor and it is therefore possible by the use of fenchone to manufacture a much more concentrated disinfectant soap than by the use of camphor, a fact which could not be foreseen. \Vhile camphor at the most d ssolves to the. extent of 10',-.' in soap fenchone dissolves to the. extent of over of manufacturing soap with such a high disinfectant percentage offers very great advantages, as a definite percentage-content of disinfectant medium is necessary of practical account, since a too high soap content would naturally entail a considerable int-reuse in the cost of the disinfectant, and the disinfectant considerably owing to the disproliiortion between disinfectant medium and soap. Fur;- ther, the disinfecting strength of such high percentage fenchone soap is very much greater than that of camphor soap. The germ destroying strength of camphor soap is so slight, that practically it does not come A solution of camphor in rieinolic sulfonatei of soda in a diluted form which CODt-tIlHS 'lVC of caln hor, would not completelydestroy germs even afteracting upon. thei'n 'for 7 hours. This effect is, in comparison"with that of carbolic acid, so slight, thatprac'tically it. is of no account. On the other hand a 407, fenchone soap in a diluted form with 1 part soap and 150 parts water kills, as experiments have shown, germs of LaptcrZ-um cola (O'IIUI'ZIHIE more rapidly than a 1% aqueous solution of carbolic acid. Even if there has already been an intention of using fenchone as a. substitute for camphor for technical purpos s yet there could never have been an intention of using fenehone in this con-. nection in the form of soap as a disinfecting medium, because camphor is of no account for this purpose.

For the manufacture of fem-hone soaps fenchone is mixed with resinous soaps, fat soaps or one of the otherwise known soaps or soap-mixtures. If the thus obtained solutions or emulsions of fenchone in soap are mixed with water as a rule emulsions with good keeping qualities are formed, which. may he used just as the solutions themselves. In (-misequence of their cleansing and disinfecting qualities these solutions and emulsions of fenchone are capable of application in very many different ways. For instance liquid soaps of fenchone dissolve dried oil colors and varnish easily oonseqiwntly adapted for 'a cleaning medium for reun ting spots from .clothes and similar purposes.-

sions of fenchone are capable not only of being used as a disinfecting medium but I may be emplwed also as an addition to to obtain a disinfectant e strength would suffer intoaccount atall as a disinfecting medium.

and are The solutions and emul- KVAILAB E COPY Mr 3 i i "fund-1: 

